EP0364060A3 - Methods of injection molding and extruding wet hygroscopic ionomers - Google Patents

Methods of injection molding and extruding wet hygroscopic ionomers Download PDF

Info

Publication number
EP0364060A3
EP0364060A3 EP19890250055 EP89250055A EP0364060A3 EP 0364060 A3 EP0364060 A3 EP 0364060A3 EP 19890250055 EP19890250055 EP 19890250055 EP 89250055 A EP89250055 A EP 89250055A EP 0364060 A3 EP0364060 A3 EP 0364060A3
Authority
EP
European Patent Office
Prior art keywords
ionomers
methods
injection molding
extruding wet
hygroscopic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19890250055
Other languages
German (de)
French (fr)
Other versions
EP0364060B1 (en
EP0364060A2 (en
Inventor
Paul Newton Colby
Michael Ferrell Durina
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Spirex Corp
Original Assignee
Spirex Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Spirex Corp filed Critical Spirex Corp
Publication of EP0364060A2 publication Critical patent/EP0364060A2/en
Publication of EP0364060A3 publication Critical patent/EP0364060A3/en
Application granted granted Critical
Publication of EP0364060B1 publication Critical patent/EP0364060B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/60—Screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
    • B29B7/00—Mixing; Kneading
    • B29B7/30—Mixing; Kneading continuous, with mechanical mixing or kneading devices
    • B29B7/34—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices
    • B29B7/38—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary
    • B29B7/40—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft
    • B29B7/42—Mixing; Kneading continuous, with mechanical mixing or kneading devices with movable mixing or kneading devices rotary with single shaft with screw or helix
    • B29B7/428—Parts or accessories, e.g. casings, feeding or discharging means
    • B29B7/429—Screws
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/0001—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor characterised by the choice of material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/63—Venting or degassing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/53—Screws having a varying channel depth, e.g. varying the diameter of the longitudinal screw trunk
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/505—Screws
    • B29C48/64—Screws with two or more threads
    • B29C48/65—Screws with two or more threads neighbouring threads or channels having different configurations, e.g. one thread being lower than its neighbouring thread
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/36—Means for plasticising or homogenising the moulding material or forcing it through the nozzle or die
    • B29C48/50—Details of extruders
    • B29C48/76—Venting, drying means; Degassing means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/17—Component parts, details or accessories; Auxiliary operations
    • B29C45/46—Means for plasticising or homogenising the moulding material or forcing it into the mould
    • B29C45/58—Details
    • B29C45/60—Screws
    • B29C2045/605—Screws comprising a zone or shape enhancing the degassing of the plastic material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/812—Venting

Abstract

Ionomers can be injection molded and extruded in wet condition using a vented, two-stage barrier screw wherein the barrier flight melt channel is operated only partially filled.
EP89250055A 1988-10-11 1989-10-11 Methods of injection molding and extruding wet hygroscopic ionomers Expired - Lifetime EP0364060B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US255883 1988-10-11
US07/255,883 US4944906A (en) 1988-10-11 1988-10-11 Methods of injection molding and extruding wet hygroscopic ionomers

Publications (3)

Publication Number Publication Date
EP0364060A2 EP0364060A2 (en) 1990-04-18
EP0364060A3 true EP0364060A3 (en) 1991-01-30
EP0364060B1 EP0364060B1 (en) 1994-08-24

Family

ID=22970254

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89250055A Expired - Lifetime EP0364060B1 (en) 1988-10-11 1989-10-11 Methods of injection molding and extruding wet hygroscopic ionomers

Country Status (6)

Country Link
US (1) US4944906A (en)
EP (1) EP0364060B1 (en)
JP (1) JPH02171225A (en)
AU (1) AU627506B2 (en)
CA (1) CA2000412A1 (en)
DE (1) DE68917673T2 (en)

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US5088914A (en) * 1990-05-11 1992-02-18 Romano Brambilla Double flighted extrusion screw
US5035509A (en) * 1990-08-13 1991-07-30 Hpm Corporation Multi-channel extrusion screw with a zig-zag undercut barrier
JP3170757B2 (en) * 1990-08-31 2001-05-28 東芝機械株式会社 Barrier screw
DE69224242T2 (en) * 1991-03-04 1998-05-14 Dow Chemical Co Process for improving the oxidative thermal stability of ethylene polymers
US5215764A (en) * 1991-06-10 1993-06-01 Westland Corporation Extruder mixing screw
US5342125A (en) * 1992-05-14 1994-08-30 Great Lakes Feedscrews, Inc. Feedscrew for injection molding and extrusion
US5281384A (en) * 1992-06-15 1994-01-25 Western Container Corporation Improved method for transfer of molding material in two stage injection molding units during molding of preforms
US5318357A (en) * 1992-06-16 1994-06-07 Spirex Corporation Extruder injection apparatus
US5486425A (en) * 1993-03-30 1996-01-23 Seibert; George M. Shooting range target
IL109386A (en) * 1993-04-30 1996-10-31 A K Tech Lab Inc Method for injection molding polyethylene terephthalate
JP2673491B2 (en) * 1994-03-07 1997-11-05 日精樹脂工業株式会社 Amorphous molding material supply method
IT1274715B (en) * 1993-08-24 1997-07-24 Nissei Plastics Ind Co INJECTION MOLDING METHOD OF POLYETHYLENE TEREPHTHALATE
JP3573380B2 (en) * 1995-08-14 2004-10-06 株式会社青木固研究所 Preform injection molding method and stretch blow molding method for polyester resin
US5599097A (en) * 1995-12-14 1997-02-04 The Black Clawson Company Extruder screw for plastic extruders
US5798077A (en) * 1996-11-04 1998-08-25 Spirex Corporation Screw for plasticating apparatus and method of use
JP3104860B2 (en) * 1996-12-27 2000-10-30 日精樹脂工業株式会社 Injection screw
US5823668A (en) * 1997-05-29 1998-10-20 Spirex Corporation Extruder and extrusion screw therefor
US5961209A (en) * 1997-06-11 1999-10-05 Royal Feed Screws, Inc. Feed screw
US6227692B1 (en) * 1997-08-12 2001-05-08 Husky Injection Molding Systems Ltd. Double wave screw
US6136246A (en) * 1997-11-07 2000-10-24 Rauwendaal Extrusion Engineering Screw extruder with improved dispersive mixing elements
US6056430A (en) * 1998-09-25 2000-05-02 Hpm Corporation Plasticating apparatus having a multichannel wave screw with a cross channel solids transition
US6132075A (en) * 1998-09-25 2000-10-17 Hpm Corporation Multichannel wave screw with a slush channel barrier section
US6234659B1 (en) 1998-09-25 2001-05-22 Hpm Corporation Surge suppressor for vented injection molding machine screw
US6328919B1 (en) * 1999-02-16 2001-12-11 The Dow Chemical Company Method for extruding polycarbonate of low bulk density
US6139179A (en) * 1999-09-03 2000-10-31 Davis-Standard Corporation Extruder screw having multi-channeled barrier section
DE19961334A1 (en) * 1999-12-17 2001-06-21 Roehm Gmbh Injection molding process for neutral and acid group-containing (meth) acrylate copolymers
GB0102342D0 (en) 2001-01-30 2001-03-14 Smithkline Beecham Plc Pharmaceutical formulation
US7883721B2 (en) 2001-01-30 2011-02-08 Smithkline Beecham Limited Pharmaceutical formulation
US7014353B2 (en) * 2002-02-25 2006-03-21 New Castle Industries, Inc. Plasticating screw and apparatus
JP4034124B2 (en) * 2002-06-05 2008-01-16 株式会社ブリヂストン Extruder screw and method for producing the same
US6988821B2 (en) * 2002-12-30 2006-01-24 Dray Sr Robert F Plastics screw with barrier members
US7032843B1 (en) 2003-04-24 2006-04-25 Westland Corporation U.S.A., Inc. Mixing nozzle
JP4574546B2 (en) * 2003-06-19 2010-11-04 ハスキー インジェクション モールディング システムズ リミテッド Improved mixer for plasticizing screws
TW200526274A (en) 2003-07-21 2005-08-16 Smithkline Beecham Plc Pharmaceutical formulations
TW200539903A (en) 2004-03-12 2005-12-16 Smithkline Beecham Plc Pharmaceutical formulations
ES2272119A1 (en) * 2004-03-31 2007-04-16 Talleres Pena, S.A. Thermoplastics injection nozzle enhancing plasticization includes a solids and a melt channel for compression and homogenization of the melt
US20070092591A1 (en) * 2005-10-24 2007-04-26 Cyberonics, Inc. Vacuum mandrel for use in fabricating an implantable electrode
JP5485266B2 (en) * 2008-05-30 2014-05-07 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー Molded articles containing ionomer compositions
US8399096B2 (en) * 2008-10-31 2013-03-19 E I Du Pont De Nemours And Company High-clarity ionomer compositions and articles comprising the same
EP2376549B1 (en) 2008-12-30 2013-12-25 E. I. du Pont de Nemours and Company High-clarity blended ionomer compositions and articles comprising the same
US8334033B2 (en) * 2008-12-31 2012-12-18 E I Du Pont De Nemours And Company Ionomer compositions with low haze and high moisture resistance and articles comprising the same
US8177413B2 (en) * 2010-03-05 2012-05-15 Chung Chan I Scientifically designed barrier screw
DE102012008023B4 (en) * 2012-04-21 2016-06-02 Kraussmaffei Technologies Gmbh screw extruder
CN105392610A (en) * 2014-01-17 2016-03-09 莱芬豪舍机械制造两合公司 Mixing section for a plastic extrusion screw
US20150376310A1 (en) 2014-06-26 2015-12-31 E.I. Du Pont De Nemours And Company Ethylene acid copolymers, their ionomers, and their use in packaging films and injection molded articles
WO2016154342A1 (en) * 2015-03-24 2016-09-29 South Dakota Board Of Regents High shear thin film machine for dispersion and simultaneous orientation-distribution of nanoparticles within polymer matrix
CN109666874B (en) * 2018-12-28 2020-06-09 广州阿旺斯复合材料技术有限公司 High-strength screw
JP6754018B1 (en) * 2020-01-23 2020-09-09 中田エンヂニアリング株式会社 Screws, extruders and extrusion methods
JP2023551115A (en) * 2020-11-09 2023-12-07 ポミニ ラバー アンド プラスチック エス アール エル Screws and twin screw assemblies for use in elastomer mixture extruders and related methods for extruding elastomer mixtures

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FR2201969A1 (en) * 1972-10-09 1974-05-03 Maillefer Sa
DE2403989A1 (en) * 1974-01-29 1975-08-14 Dietmar Dipl Ing Weber Extruder with efficient degassing - using two different threads in the degassing zone
US4367190A (en) * 1980-12-10 1983-01-04 Phillips Cables Limited Screw extruder
US4752136A (en) * 1986-07-23 1988-06-21 Spirex Corporation Extruder injection apparatus and method
DE3741034A1 (en) * 1987-05-25 1988-12-15 Mitsubishi Heavy Ind Ltd PLASTICIZING SCREW

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Also Published As

Publication number Publication date
DE68917673T2 (en) 1994-12-15
JPH02171225A (en) 1990-07-02
CA2000412A1 (en) 1990-04-11
EP0364060B1 (en) 1994-08-24
AU627506B2 (en) 1992-08-27
US4944906A (en) 1990-07-31
AU4279189A (en) 1990-04-26
EP0364060A2 (en) 1990-04-18
DE68917673D1 (en) 1994-09-29

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